Book Image

MariaDb Essentials

Book Image

MariaDb Essentials

Overview of this book

This book will take you through all the nitty-gritty parts of MariaDB, right from the creation of your database all the way to using MariaDB’s advanced features. At the very beginning, we show you the basics, that is, how to install MariaDB. Then, we walk you through the databases and tables of MariaDB, and introduce SQL in MariaDB. You will learn about all the features that have been added in MariaDB but are absent in MySQL. Moving on, you’ll learn to import and export data, views, virtual columns, and dynamic columns in MariaDB. Then, you’ll get to grips with full-text searches and queries in MariaDb. You’ll also be familiarized with the CONNECT storage engine. At the end of the book, you’ll be introduced to the community of MariaDB.
Table of Contents (15 chapters)
MariaDB Essentials
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Summary


In this chapter, we discussed views and virtual columns. These topics are logically related, because views can be considered as virtual tables.

We examined views and learned how to manage or query them. We discussed their limitations, and some of the purposes for which they could be used. In particular, we learned how they can improve the database security.

Then we discussed virtual columns. This term includes both VIRTUAL and PERSISTENT columns; the former are calculated on-the-fly when needed, and the latter are stored on disk. We discussed how this feature can help us with some practical examples. The examples also showed how PERSISTENT columns can be used to build useful indexes, or to create powerful UNIQUE checks.

In the next chapter, we will talk about dynamic columns and understand the kind of problems they can solve.